Camera settings OK but in a meeting the image is rotated (S4B 2016)

I am running Skype for Business 2016 (Windows 7 Pro)  using a Microsoft Lifecam camera.

The video settings in S4B show the proper orientation.

My monitors are configured as Portrait.  When in a call the image is rotated 90 degrees which is problematic.

2 monitors, both portrait:  The video will be rotated 90 degrees on either screen on both my side and the call recipient's side.

2 monitors:  one portrait, one landscape; landscape monitor is the Primary monitor.  The video will be rendered correctly ( not rotated) on both the primary monitor and the secondary monitor, even though it is portrait

2 monitors: one portrait, one landscape; landscape monitor is the Secondary monitor. The video will be rotated 90 degrees on both screens on both my side and the call recipient's side.

I have exactly the same situation on a second independent computer with similar hardware and also running S4B 2016 under Windows 7.

P